摘要:
A micromachined air-cavity resonator, a method for fabricating the micromachined air-cavity resonator, and a band-pass filter and an oscillator using the same are provided. In particular, a micromachined air-cavity resonator including a current probe fabricated together when the air-cavity resonator is fabricated, and a groove structure for rejecting detuning effect when an external circuit of a package substrate is coupled to the current probe, a millimeter-wave band-pass filter using the same, and a millimeter-wave oscillator using the same are provided. The micromachined air-cavity resonator includes a cavity structure which comprises a current probe simultaneously formed through a fabrication process, and a groove structure; and a package substrate integrated with the cavity structure. Thus, the micromachined air-cavity resonator can be easily fabricated by etching a silicon substrate and easily integrated to the package substrate using the flip-chip bonding.
摘要:
A monostable to bistable transition logic element (MOBILE)-based delayed flip-flop circuit with a non-return-to-zero (NRZ)-mode output is constructed by including a parallel connection structure of a resonant-tunneling-diode (RTD) and a HEMT (High-Electron-Mobility-Transistor) used as a data input terminal and a series connection structure of the RTD and the HEMT used as a clock input terminal. The MOBILE-based delayed flip-flop circuit with a non-return-to-zero (NRZ)-mode output, includes a first high-electron-mobility-transistor for receiving a data signal as a control signal, a first resonant-tunneling-diode connected to the first high-electron-mobility-transistor in parallel, a second high-electron-mobility-transistor for receiving a clock signal as a control signal, wherein one side of the second high-electron-mobility-transistor is connected to one side of the first high-electron-mobility-transistor and a second resonant-tunneling-diode connected between the other side of the second high-electron-mobility-transistor and a ground side in series.